10231244221 has 16 divisors (see below), whose sum is σ = 11356692480. Its totient is φ = 9138524080.

The previous prime is 10231244207. The next prime is 10231244227. The reversal of 10231244221 is 12244213201.

It is a cyclic number.

It is not a de Polignac number, because 10231244221 - 2¹⁵ = 10231211453 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10231244192 and 10231244201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10231244227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1740930 + ... + 1746796.

It is an arithmetic number, because the mean of its divisors is an integer number (709793280).

Almost surely, 2^10231244221 is an apocalyptic number.

10231244221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10231244221 is a deficient number, since it is larger than the sum of its proper divisors (1125448259).

10231244221 is a wasteful number, since it uses less digits than its factorization.

10231244221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8624.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 10231244221 its reverse (12244213201), we get a palindrome (22475457422).

It can be divided in two parts, 10231 and 244221, that added together give a palindrome (254452).

The spelling of 10231244221 in words is "ten billion, two hundred thirty-one million, two hundred forty-four thousand, two hundred twenty-one".